Amalgamating-machine.



No. 770,289'. j PATENTED SEPT. zo, 1904. P. J. HoYT. AMALGAMATING MACHINE..

APPLICATION FILED' APB?. 22, 1903.

N0 MODEL.

Nirn STATES Patented September 20, 1904.

F FICE.

ArtNr AwlALeAwlArlNe-MACHINE.

SPECIFICATION forming part of Letters Patent No. 770,289, dated September 20, 1904.

l Application filed April 22, 1903. Serial No. 153,800. iN@ model.)

T0 all 1071/0711/ 'if/5 mln/y concern: A

Be it known that I, FREDERICK J. Hor'r, a citizen of the United States, residing' at Chicago, in the county of Cook and State of lllinois, have invented certain new and useful Improvements in Amalgamating-Machines, which are fully set forth in the following specification,'reference being had to the accompanying drawings, forming a part hereof, and in which# Figure 1 shows my said new amalgamatingmachine in central vertical section. Fig. 2 shows the amalgamatingball separated and turned Quarter-way round horizontally. Fig. 8 shows the bottom of the holder in plan view below the cutting plane 3 3 of Fig. l. Fig. 4 shows the amalgamating sphere and its holder in perspective turned Quarter way round from the position it and a fragment of the spout have in Fig. l.

Like letters of reference denote like parts throughout.

The object of my invention is to produce an amalgamator which improves the construction and operation of that class of amalgamators which use Quicksilver for'catching fine and flour gold where the same is free-milling' and liberated from Quartz or other gold-bearing earths.

My said new machine is constructed in sub* stantially the following manner, namely: I

make an upright cylindrical holder A-say.

three feet in diameter and standing' about four or more feet in height-having a coneavo-convex bottom L', a flanged top Z, and a pipe ,7' in its axial center extending both ways from said bottom, about six inches whereof its inner end is screw-threaded interiorly, and the opposite end is so threaded exteriorly and yprovided with a cap C. Into the other end of said pipe is screwed the tubular stem R of a hemispherical bowl B. Said bowl is about twenty-six inches in diameter, and in it is, as nearly as practicable, a semisubmerged hollovs7 cast-iron copper-sheathed globe D, eQuatorially separable by a screw-threaded sleeved connection D" and polarily provided with circumferentially-grooved axle ends b, which turn in ballbearing boxes g on said bowl. The mercury m, in which said globe floats, may be an inch or more in thickness. The object of said bearings is merely to hold said ball centrally in said bowl and not primarily as bearings, but merely to prevent lateral motion" to the ball. The weight of said sphere is therefore so adjusted or ballasted that the axes of said axle ends will be coincident with the axes of said bearings, and therefore frictionless as nearly as possible. For said end-vnamely, to properly float said ball*its necessary thickness may be calculated, or it may be made too light and then ballasted to the equilibrium aforesaid with Quicksilver. Said ball is covered with a silvered-copper sheathing', which in turn is amalgamated.

A flanged funnel T is held on the flange Z of the holder A and is provided with a thin and broad discharging-spout m, whereof the end is concentric with the globe-surface and about an inch or two above it, and above said funnel-flange is placed a flanged spherical segment of wire screen N and onto'said screen as a holder thereto is placed the flange m of a short extension ma of the casing A,'and through said flanges pass bolts c, holding said parts together, and at the junction of said screen and funnel, either above or below said screen, is placed an annular pipe u, provided with numerous jet-openings ma, and to said pipe is connected a charging-pipe Na, which supplies said jets with water. Axially to said holder and over said wire segment is placed the end of a charging-pipe O, through which passes a stream of water charged with goldbearing powdered rock or sand, which is washed in all directions over land through said screen and onto said funnel and by the help of said jets ma down through said funnel-spout and tangentially forced onto said ball, which by the weight of the load so imposed on it and eccentrically or to one side of the axis is thereby caused to revolve and to discharge said load, which is thus carried onto the Quicksilver m in the bowl B, where it is further agitated by being sunk into the Quicksilver a short distance through its adhesion and friction to the revolving globe, and then through its buoyancy released and carried outward and upward against the rim of the bowl and from which it is overilowed in IOO the current so induced by the flowing material, and is thus deprived of every particle of free gold which may cling to the sand and debris, which thus is forced onto the bottom from whence said dross is washed through the holes t' into the spout or tailway I), thence into the vessel q, provided with agitators 7, worked by gears s3, from which the dross overliows and in which any escaped gold or mercury is caught.

In Fig. 4 is shown a removed fragment to show the globe and its sheathing. The equatorial section (shown in Fig. l) being' taken through the threaded sleeves D shows on that account three concentric rings.

As the gold accumulates it sinks to the bottom of 'the mercury, where it is removed by means of the cap 7c.

What I claim isl. The combination with a bowl, mercury therein, a semisubmerged body i'loated in said mercury, held centrally in said vessel, but unsupported, at its axle ends, of a chargingspout over said body.

2. rIhe combination with a tubular-lystemmed bowl, mercury therein, a semisubmerged body iioated in said mercury and axially guided but unsupported by its axle ends, of a spout over said body.

3. The combination with a bowl, mercury therein; a revoluble body in said mercury, guided but unsupported, at its axle ends, of a charging-spout and hopper to said spout.

4c. The combination with a capped hollowstemmed bowl, and a spout over it, oi' a revoluble, globular semisubmerged body axially guided in said bowl.

5. The combination with a mercury-holder, of a revoluble body floated in a body of mercury in said holder, a charging-spout, a screen thereunder, a funnel under said screen, a spout to said funnel, and a holder to said screen, funnel, and revolving body, substantially as speciiied.

6. The combination with a mercury-floated revoluble body, of a charging-spout, a convex screen thereunder, a funnel under said screen, a broadened spout to said funnel and a holder for said screen, funnel, and revoluble body, substantially as speciiied.

7. The combination with a charging-pipe, a convex wire screen thereunder and a funnel under said screen, oil a mercury-floated, revoluble body, receiving the discharge of said funnel, means to withdraw said mercury and to separate and discharge the debris, substantially as speciiied.

8. The combination with a charging-pipe, a convexed wire screen thereunder, an annular jet-pipe, and a funnel under said parts, of

a mercury-loated revoluble body, substantially as specified.

9. The combination with a charging-pipe and a funnel thereunder, of a mercury-floated, ballasted, and axially-held revoluble body under said funnel, substantially as specified.

l0. The combination with a charging-pipe and funnel thereunder having a broad and radially-curved spout end, of a mercury-heated revoluble body under said spout, substantially as specified.

1l. The combination with a hollow, equatorially-separable, axially-guided globe, of a bowl and mercury to semisubmergedly float said globe and means to charge said globe,

with sand.

FREDERICK J .,HOYT. Witnesses:

WM. ZmMERMAN, JOHN MCDONALD. 

